Nicholson - Apex Tool Group FILES, FILING User Guide

Apex Tool Group, LLC
14600 York Road, Suite A
Sparks, Maryland 21152
www.apextoolgroup.com

ATG-1692 6/14 / ITEM NO. T550587
©2014 Apex Tool Group, LLC

Nicholson® is a registered trademark of Apex Brands, Inc.,
a Division of Apex Tool Group, LLC.

Specifications subject to change without notice.

THE GUIDE TO

FILES AND FILING

Introduction

Choosing the right file can be confusing, with so
many sizes, shapes and cuts available it is difficult
to decide the right one for the job.

The range of Nicholson® files available from
Apex Tool Group covers every job task requirement.

This booklet has been specially produced to simplify
file selection and application for any file user.

History

The file has been with man now
for many years and one of the first
recordings is in the Bible during the
reign of King Saul.
This would be approximately 1090 BC
and at that time files would have been
used for sharpening various types
of primitive tools. From the first files
the development and evolution can
be traced from stone implements to
files with teeth running at right angles
across the file blank to present day
quality machine produced files.

The first attempt to cut files by
machine was approximately 1490
AD and resulted from an invention
by Leonardo da Vinci. However the
first machine which actually cut files
was that made by the Frenchman,
Chopitel in 1750.

At this time files were made from
mild material and did not require
annealing. To produce a hardened
surface various preparations were
used to carburize the file teeth. But
it was the inventions of such men as
Bernot, Nicholson, Whipple and Weed
that provided machines capable of
producing better files than those
produced by hand.

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How a file is made

Today various kinds of material,
product finish and working
condition make file development
an industrial science. File
manufacture involves the study
of file steels, file design and
file performance for all file
applications.

1. File Steel: Is cut to proper
length from various width
thickness and cross sections
such as rectangular, square,
triangular, round and half round.

2. Rough shaping: The blank is
punched to shape or is heated
and forged with drop hammers
and rollers to shape the tang
and point.

3. Annealing: The forged
blank is heated to an elevated
temperature and then cooled
slowly under controlled
conditions to soften the steel
for tooth cutting and to make
internal steel structure uniform.

4. Final Shaping: The annealed
blanks are ground or milled to
produce a surface necessary
for the uniform formation of
the teeth. This is followed by
drawfiling that produces the
perfectly true flat or curved
surface necessary for the
uniform formation of the teeth.

5. Forming teeth: The teeth are
formed by a rapidly reciprocating
chisel that strikes successive
blows on the file. The hardened
chisel cuts into the soft blank
displacing and raising the steel
into the desired tooth structure.

6. Hardening: The file is then
hardened by heating it in a
molten bath to a predetermined
temperature. This is followed by
immersing the file in a quenching
solution. This combination
of heating and cooling under
carefully controlled conditions
brings the file to the maximum
hardness to the very top of the
cutting edges.

7. Finishing: The file is
cleaned and sharpened by
bead blasting. The tang is
reheated to give strength
without brittleness. It is then
given a series of tests by
trained inspectors, and oiled
to prevent rust.

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File Terminology

Each part of the file has a name
and there are many different
shapes and sizes of files.
Furthermore, there are varying
types of file cuts

Point Belly Heel Tang

Type: The cross-sectional

shape or style of the file i. e.
quadrangular, circular, triangular
or irregular. These sections are
further classified according to their
contours i. e. blunt, taper etc.

Blunt: A file whose edges are
parallel from end to end and of
constant width.

Taper: The reduction in cross
section of the file from its heel to
the point. A file may taper with
width, in thickness or in both.

Coarseness: The number of
teeth per inch length of the file.

Cut: The character of the file teeth
with respect to the coarseness
(bastard, second-cut and smooth.)

A single-cut file has a single set
of parallel, diagonal rows of teeth.
Single-cut files are often used
with light pressure to produce a
smooth surface finish or to put
a keen edge on knives, shears
or saws.

A double-cut file has two sets
of diagonal rows of teeth. The
second set of teeth is cut in
the opposite diagonal direction,
and on top of the first set. The
first set of teeth is known as the
overcut while the second is called
the upcut. The upcut is finer
than the overcut. The double­cut file is used with heavier
pressure than the single-cut and
removes material faster from the
workpiece.

available, all with their own names.
This section of the booklet will help
you understand the file and the terms
used:

Length

File Terminology

A rasp-cut has a series
of individual teeth that are
formed by a single-pointed
tool. This produces a rough­cut and is used primarily on
wood, hooves, aluminum and
lead.

A curved-cut / mill tooth
file has its teeth arranged in
curved contours across the
file face and is normally used
in automotive body shops for
smoothing body panels.

Plater's Rasp: A rasp file
combination that is used
primarily by farriers in the trim­ming of horses' hooves.

Woodchuck: A multi-purpose
Wood chisel / rasp combina­tion tool used by cabinetmak­ers, homebuilders, and con­struction workers.

Bastard: File coarseness
between "Coarse and Second
Cut."

Back: The convex side of a
half-round or other similarly
shaped file.

Edge: The intersection of two
adjacent faces of the file.

Safe Edge: A smooth or uncut
edge of the file.

Pinning: Filings wedged
between the file teeth.

Shelling: The breaking of file
teeth, usually caused by using
too much pressure reverse
filing, filing sharp corners, or
edges.

Handle: A holder into which
the tang of the file fits. If the
file has an integral holder this
is known as a solid handle file.

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Choosing the right file

To achieve the desired results it
is essential that the right file be
used for the job. In selecting the
right file the user should consider
the shape, size and coarseness of
the file.

The size and the coarseness of

the file are directly related, so the
larger the file the more stock it will
remove and the smaller the file the
finer the finish it will achieve.

Most files also have three grades

of cut: bastard-cut, second-cut and
smooth-cut. The coarser the cut
of the file, the rougher the finish of
the work. Therefore, the size of the
file and the grade of its cut must
be taken into account against the
amount of stock to be removed
and the fineness of fi nish that is
required.

Generally speaking bastard and
second-cut grades of double-cut
files would be chosen for the fast
removal of stock while single-cut
files and smooth double-cut files
would be chosen for finishing. It is
however almost impossible to lay
down exact guidelines for the right
file for the job, but using the basic
facts given here the user should
have a reasonably clear picture in
mind, the nature, size of the work,
the kind of finish required, the
working tolerance allowed and the
risks (if any) of spoiling the work.

In addition to the amount of stock
to be removed, the contour of its
removal is equally important and is
determined by the shape of the file.
For example, a triangular file should
be used on acute internal angles,
to clear out square corners and in
sharpening saw teeth.

A flat file should be used for
general-purpose work, a square
file for enlarging rectangular holes
and a round file for enlarging round
holes. A half-round file can be used
for dual purposes, the flat face for
filing flat surfaces and the curved
face for grooves.

How to use a file correctly

Filing is an industrial art - grip,
stroke and pressure may vary, to fit
the job. There are three elemental
ways a file can be put to work
They are:

Straight filing: This consists of
pushing the file lengthwise-straight
ahead or slightly diagonally-across
the workpiece.

Drawfiling: This consists of
grasping the file at each end,
pushing and drawing it across the
workpiece.

Lathefiling: This consists of
stroking the file against work
revolving in a lathe.

For normal filing, the vice should
be about elbow height. When there
is a great deal of heavy filing it is
better to have the work slightly
lower. If the work is of fine and
delicate nature, the work can be
raised to eye level.

For work that could become
damaged in the vice through
pressure, a pair of protectors
made of zinc, copper or aluminum
sheet should be used between the
workpiece and vise jaws.

The Grip

For files needing two-handed
operation, the handle should be
grasped in one hand and the point
of the file in the other hand.

The file handle should be rested in
the palm with the thumb pointing
along the top of the handle and the
fingers gripping the underside.

The point of the file should be
grasped between the thumb and
the first two fingers with the thumb
being on the top of the file.

When heavy filing strokes are
required, the thumb on the point is
normally in line with the

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7

file; the tip of the thumb pointed
forward. For lighter strokes
however, the thumb can be turned
to as much as right angles to the
direction of the stroke

If the file is being used one-handed
for filing pins, dies or edged
tools not being held in a vise, the
forefinger, and not the thumb is
placed on top of the handle in line
with the file.

Carrying the file

For normal flat filing, the operator
should aim to carry the file forward
on an almost straight line in the
same plane, changing its course
enough to prevent grooving. Too
much pressure often results in a
rocking motion causing a rounded
surface.

Keep the file cutting

One of the quickest ways to ruin
a good file is to apply too much
pressure, or too little, on the
forward stroke. Different materials
of course require different touches;
however, in general, just enough
pressure should be applied to keep
the file cutting. If allowed to slide
over the harder metals the teeth of
the file rapidly become dull, and if
they are overloaded by too much
pressure, they are likely to chip
or clog.

On the reverse stroke, it is best to
lift the file clear of the workpiece,
except on very soft metals. Even
then pressure should be very light,
never more than the weight of the
file itself.

Drawfiling

Drawfiling consists of grasping
the file firmly at each end and
alternatively pushing and pulling
the file sideways across the work.
Since files are made primarily to
cut on a longitudinal forward stroke,
a file with a short-angle cut should
never be used, as it will score and
scratch instead of shaving and
Shearing. When accomplished
properly, drawfiling produces a
finer finish than straight filing.

Normally, a standard Mill Bastard
file is used for drawfiling, but where
a considerable amount of stock
has to be removed, a Flat or Hand
file (Double Cut) will work faster.
However, this roughing down
leaves small ridges that will
have to be smoothed by finishing
with a Single Cut Mill file.

Lathe filing

When filing work revolving in a
lathe, the file should not be held
rigid or stationary, but stroked
constantly. A slight gliding or lateral
motion assists the file to clear itself
and eliminate ridges and grooves.

While a Mill file is capable of good
lathe filing, there is a special Long
Angle Lathe file with teeth cut at a
much larger angle. This provides a
cleaner shearing, self-clearing file,
eliminates drag or tear, overcomes
chatter and reduces clogging.
Uncut edges on this file protect any
shoulders on the work, which are
not filed, and the dog, which holds
the workpiece.

Lathe filing is usually employed
for fitting shafts. Where stock is
to be removed, a 12"/300mm or
14"/350mm Long Angle Lathe file
is preferable. This file will provide
the finish suitable for a drive fit. For
a running fit a Mill file will provide a
smooth finish. Where

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a fine finish is required a Swiss
Pattern and or Pillar file in No. 4
should be used.

Recommended Surface Feet per
Minute for Lathe Filing:

Cast Iron Approximately 150

Annealed Tool Steel Approximately 175

Machinery Steel Approximately 350

Soft Yellow Brass Approximately 500

Many lathe filers make a practice
of not using a new file for work
requiring an extremely fine finish.

In using the Long Angle Lathe file,
care should be taken at shaft ends
as this fast cutting file may cut too
deeply.

Do not run a hand over lathe work,
as oil and moisture can coat the
surface and make it difficult for the
file to take hold. For lathe work that
has oval, ecliptical or irregularly
round form, the finer Swiss Pattern
files are most satisfactory.

Filing different metals

Different metals vary greatly in
character and properties, some
are softer than others are, and
some are more ductile and so on.
The nature of the metal has to be
taken carefully into account when
choosing the right file and applying
it to the job. For instance, a soft
ductile metal requires a keen file
and only light pressure must be
applied during filing if the work is not
to be deformed. Conversely, a hard
and less ductile metal may require
a file with duller teeth to avoid them
biting too deep and breaking off
when pressure is applied.

When filing a material the user can
normally feel whether or not he is
using the right file,

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and filing in the correct manner.
All things being correct, a smooth
cutting action and a good clean
finish on the work is achieved.
If there is stubborn resistance,
chances are the wrong file is being
used, the file is damaged or the
wrong method is being used.

Filing rough castings

Snagging castings, removing fins,
spurs and other projections, is hard
on normal files. Their teeth are for
fast cutting and do not possess
the ruggedness for driving against
hard projections and edges. This
filing engages only a few teeth,
thus putting a strain on each. For
such work, it is better to use a
Foundry file with sturdier teeth and
heavy-set edges to resist shelling
or breaking out.

Filing die castings

Like foundry castings, die castings
usually have sharp corners, webs,
fins or flashing which are liable to
damage a normal file. In addition,
die castings consist of magnesium,
zinc, aluminum, alloy or similar
combinations of metal which have
the tendency to clog regular files.

Depending on the shape, Apex
Tool Group has a variety of
files that will meet the required
application. Suggested files
are found in the "job by job" file
selector of this book, or you may
contact your Apex Tool Group
Customer Service Representative.

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Filing stainless steel

The use of stainless steel and
alloy steels has created other
filing techniques. These steels
with hard chromium and nickel
content are tough and dense. This
causes them to be abrasive, which
shortens the life of the normal file.

To overcome these problems, files
have been developed with good
wearing qualities. These files, when
used with a light pressure and a
slow, steady Stroke, will remove
metal and provide a good finish.

Filing aluminum

Aluminum is soft and is difficult
to file, file teeth clog even under
moderate pressure. Filing
aluminum is divided into:

1) Filing roughness from aluminum
castings,

2) Filing sheet and bar aluminum,

3) Filing aluminum alloys.

To produce a good finish, the
Aluminum Type A file has been
developed. The file upcut is deep
with an open throat, the overcut
fine which produces small scallops
on the upcut. This breaks up the
filings and allows the file to clear.
This also overcomes chatter and
prevents too large a bite. By using
a shearing stroke toward the left, a
good finish can be obtained.

Filing brass

Brass is difficult to file because it
is softer than steel, but tough. This
demands teeth that are sharp,
sturdy and cut to prevent grooving
and running the file off the work.

The Brass file has a short upcut
angle and a fine long angle overcut
which produces small scallops to
break up filings and enable the file
to clear. With pressure, the sharp
high-cut teeth bite deep, with less
pressure, the short upcut angle
smoothes.

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Filing Bronze (Copper, tin or other alloying elements)

Bronze is similar in nature to
brass in some aspects, but varies
according to the percentages of
alloying elements.

Average sharpness of the file is
satisfactory for some bronzes,
while for others, a file that can
maintain its sharpness for longer
periods is required. Thus, for the
harder bronzes, a file with a more
acute angle at the top of the tooth
is desirable. This is known as a
thin topped tooth.

The direction of stroke of the file
should be crossed frequently to
avoid grooving with bronze and
brass.

Filing Wrought Iron

Wrought iron is relatively simple to
file. It is soft but only moderately
ductile so it is not necessary for a
file to be very sharp to obtain good
results.

Filing plastics

Hard plastics are dense and brittle,
and material is removed as light
powder. The abrasiveness of hard
plastics requires files with high
sharp teeth. Soft plastics are filed
in shreds so Shear Tooth files
should be used for this
application.

Depending on the density of the
material, Apex Tool Group has
the file that will meet the required
application. Suggested files
are found in the "job by job" file
selector of this book, or you may
contact your Apex Tool Group
Customer Service Representative.

13

Filing soft materials

Soft materials such as Aluminum,
Brass, Copper, Plastics hard
rubber and Wood, a Shear Tooth
file provides fast material removal
with good smoothing qualities. The
combination of the Single Cut and
the Long Angle helps the Shear
Tooth file to clear. Because of the
Long Angle the file has a tendency
to run to the left on narrow surfaces.
This can be overcome by filing with
a diagonal stroke to the right.

Precision filing

For filing such as that employed
by the instrument industry, there
is a range of Swiss Pattern files.
The delicate precision work calls
for these files be made to exacting
measurements and finer cuts.

The flat Precision file should be
used with a slow smooth stroke
moving the file laterally along the
work on the forward stroke. In using
Round or Half Round types, the
filing should be clockwise to ensure
a deeper cut and a smoother finish.

Saw Filing

Efficient saw filing demands, first
of all, a steady hand and a good
file. Also, the file must be correct
in design, cut and size for the type
of saw and the type of teeth to be
filed.

The stroke must be absolutely level,
as the slightest rocking will affect
the cutting edge of the saw-tooth.
The file must be lifted off the work
when drawing back for the next
stroke.

The teeth have to be set at the
correct angle in relation to each
other. This is best done with a "Saw
Set" usually before filing. However,
some filers prefer to do this after
the saw has been filed. To file saw
teeth, provisions must be made to
hold the saw. A saw vise should be

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used, to be sure there is no chatter
or vibration in the saw. This will
shorten the life of the file.

Sharpening hand saws

Handsaws of two types, the
Crosscut and the Rip must be
reset, normally every fourth or
fifth filing. Check that teeth are
of equal height. This can be
accomplished by passing the file
lightly lengthwise along the tops of
the teeth. Some may be flattened,
others are hardly touched. The
flattened teeth will require more
filing to put them in shape.

These files should be used:

Five 7"/175mm Regular Taper or 6"/150mm Heavy Taper

Five and a half 7" /175mm Regular Taper or 6" /150mm Heavy Taper

Six 7" /175mm or 8" /200mm Slim Taper

Seven 6" /150mm, 7" /175mm Slim Taper and
9" /225mm or 10" /250mm Double Ender

Eight 6" /150mm Slim Taper or 7" /175mm Extra Slim
Taper or 9"/225mm Double Ender or
8"/200mm Double Extra Slim Taper

Nine 6" /150mm Extra Slim Taper, 7"/175mm Double
Extra Slim Taper or 8"/200mm Double Ender

Ten 5" /125mm or 6" /150mm Extra Slim Taper,
6"/150mm Double Ender

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Filing chain saw teeth

Rounded hooded chain saws:

These type of chain saws require
Round Chain saw files specifically
designed for the task. These files
are available in various diameters
to fit a sizes of Round Hooded
chain saws. Place the file against
the beveled cutting surface of the
teeth that face both sides and
provide their own clearance at an

angle of 20∞ to 45∞ with the saw

blade, depending on manufacturers
specifications. The direction of the
filing stroke is off the cutting edge.
It is essential that the file be held
level and it should be pressed
back and slightly up during the
filing stroke. Every other tooth is
filed, and then the chain saw is
reversed. The depth gauges of this
type of saw control the depth of the
cut that the saw will take. As the
cutting teeth are sharpened, they
become lower, and it is necessary
to lower the depth gauges an equal
extent. The difference in height
between cutting teeth and depth
gauge should be between 020"/
5mm and 030"/ 75mm.

File the depth gauge only as
required to maintain dimensions
between cutter and gauge as cutter
is filed back. Do not file off too
much. This overloads motor and
chain and the chain will clog. Use
a depth gauge, chainsaw file, or a
mill file.

Sharpening circular saws

Before removing the saw blades
from saw, lower the blade until only
1/64" (4mm) protrudes above the
table. Place a file over the opening
in the table and by hand, revolve
the saw backward against the file.
Be sure that the file touches each
tooth top. Remove the saw blade
and sharpen, using the following:
6"/ 150mm and 7"/175mm saws

use 6"/150mm Cantsaw file.
8"/200mm and 9"/225mm saws use
8"/200mm Cantsaw file.
10"/250mm and up use 10"/250mm
Cantsaw file.

Some large size circular saws may
be sharpened without removing
them from the saw as long as
there is no chatter. Large circular
saws with insert type teeth are
sharpened with a Mill file. The
larger the saw, the larger the file.

Filing the hand crosscut saw

The teeth of the crosscut saws cut
with their edges and points: edges
must be beveled and sharp. Start
at the point of the saw and work
towards the handle. Place the file
in the gullet to the left of the first
tooth set away from you. Hold the
file level with the angle of the saw
blade. At this angle, it should touch
on the bevels of both teeth. When
filing the flattened teeth, only half
should be filed away at a time.
Miss the next gullet and file the one
following until every other gullet
has been filed.

Reverse the saw and begin
process from second gullet away
from saw point.

Filing hand ripsaws

For pointing and filing, follow the
same procedure as the Crosscut
saw. It must be remembered that
the Rip saw is filed so that the
tooth points do the cutting, not
the edges. Teeth should be filed
at right angles to the blade. Every
other tooth is brought to a square
edge, the saw is reversed and the
remaining teeth filed.

Sharpening crosscut saws

The Crosscut saw has two types
of teeth, cutters and rakers. The
cutters do the cutting, the

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rakers clear the cut. This is filed
at an angle of 45° from the filer.
This permits access to cutters and
enables the teeth to be filed at the
correct angle.

Teeth should be checked
for levelness, the raker teeth
being between 1/100"/25mm to
1/64"/.4mm below level of cutting
teeth. The filer should use a
Crosscut Saw file or a Mill file and
file all cutter teeth to a point. The
saw is placed vertically and the
file used across the rakers. Should
the gullets of the teeth require
deepening, a Round file or a Mill
file with round edge can be used,
or use the back of the Crosscut file.

Sharpening tools and implements

There are many tools and
implements in industry, agriculture
and gardening that require regular
sharpening. Such tools may be
filed towards or away from the
edge, the former for the early part
of the task and the latter for the
light finishing touches. For coarse
steel cutting edges for hoes,
ploughs etc., Home and Garden
files, as well as Axe and Handy
files are available. For harder
carbon steels in cutter knives,
shears etc., the Second Cut or
Smooth Mill provides a sure, but
smoother bite. It is essential that
the work glaze be removed in the
first few strokes, so apply extra
pressure in very slow, deliberate
strokes at the beginning.

Rasps

Rasps are broadly classified
as wood, cabinet and horse
Rasps. Also available are rasp
combinations known as Four-in­Hand (or Shoe Rasp) and Wood
Craft Rasp.

The Wood Rasp is a coarser cut
than the Cabinet Rasp and

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is made primarily for the rapid
removal of stock. For finer
woodwork, the Cabinet Rasp
provides a means of bringing
mortise-and-tenon joints to a
proper fit. The Horse Rasp is used
for shoeing horses. The Plater's
Rasp is available for light hooves
such as racehorses.

Woodchuck

Woodchuck rasp is a chisel / rasp
combination tool used for a variety
of wood working tasks. Each tool
features a flat wood rasp on one
side and a half-round wood rasp on
the other. There are edge teeth for
those hard to get spots. The chisel
point features an extremely sharp,
polished and ground blade.

Care of the file

The teeth of the file should be
protected when the file is not in use
by hanging it in a rack or keeping it
in a drawer with wooden divisions.
Files should always be kept
clear of water or grease, since
this impairs the filing action. It is
advisable to wrap the file in a cloth
for protection when it is carried in
a toolbox.

The file teeth should be kept clean
at all times by using a file card, or a
wire file brush, to clear the grooves
between the teeth.

Safety

For safety reasons, a file should
never be used without a tight
fitting handle. Serious accidents
can result if the handle becomes
detached exposing the sharp
point of the tang.

Apex Tool Group offers a variety
of different size file handles
produced in traditional wood, or
from modern plastics. If you need
help in selecting which handle is
right for your file, contact your Apex
Tool Group Customer Service
Representative today.

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'Job by Job' file selector

'Job by Job' file selector

Aluminum alloy Flat Bastard File, Aluminum File, Magicut

®

Auger Bit Auger Bit File

Auto Body Bodifiles

Babbitt Flat Babbitt, Super Shear®, Flat Files

Bearing, brass Magicut

Bearing, bronze Flat Bastard File, Magicut

®

®

Beveling Flat Bastard, Mill File

Blacksmith Rasp and Flat Bastard, Half-Round Bastard,
Flat Coarse File

Bolt threads Taper, Mill or Knife File, Mill Bastard

Brass Flat Bastard File, Magicut®, Super Shear

Bronze Flat Bastard File, Magicut

®

®

Cabinet, wood Cabinet File, Cabinet Rasp or Woodchuck

Cast iron Flat, Half-Round, Square or Round
File, according to shape of material

Casting rough Flat Bastard File

Contact points Mill Bastard, Second Cut, and Tungsten Point Files

Copper Flat Bastard File, Magicut

®

Cutter, This tool is generally ground and sharpened by
Machine tool an emery wheel. Can be filed only when in an annealed
condition. Use file to suit shape or surface.

Cutter, milling See Cutter, Machine tool

De-scaling Flat Bastard File

Die block Flat Bastard File

Die casting Flat Bastard File, Half-Round Bastard File, Round
Bastard File, Square Bastard File, or Mill Bastard
File, according to shape of the die casting and finish
desired.

Die forging Flat Bastard File or Half Round Bastard File,
according to shape of the die forging.

Die shop Swiss Pattern Files of appropriate shape

Electric If surface is large, use Mill Bastard
Connections File, otherwise use Tungsten point.
(cleaning)

Fender, auto Bodifiles

Fiber Flat Bastard File or Rasp

Fine work Swiss Pattern Files

Finishing Mill Bastard File. For lathe filing, use
Mill Bastard File or Long Angle Lathe File

Foundry casting Flat Bastard File

Furniture, making Cabinet File, Cabinet Rasp, or Mill Bastard File

Garden Tool Home and Garden File

Grooving Square Bastard, Round Bastard,
Half-Round Bastard, or Slim Taper,
according to shape of groove

Hard rubber Flat Bastard File

Hole Round Bastard File or Square Bastard File

Horse-shoeing Horse Rasp, Plater's Rasp

Hot metal, filing Flat Bastard File

Iron Bastard-Cut File according to shape of material

Joint, mortise and Cabinet File or Cabinet Rasp
tenon

Key way Square Bastard or Pillar Bastard File

Keys, filing Warding Bastard File

Knife Mill Files

Lathe-turned Mill Bastard File or Long Angle Lathe
Section File

Laminate Laminate File, Plastic File, Mill Bastard File

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'Job by Job' file selector

'Job by Job' file selector

Lawn mower Mill Bastard File or Home and Garden File.

Lock, mending Warding Bastard File.

Machinists' work Machinists' File such as Flat, Half Round, Square or
Round. Also Mill or Tapers, in cuts according to work.

Millwrights' work Flat, Half-Round, Round, Square Mill Files.

Model, metal Swiss Pattern Files.

Molded part Flat Bastard File or Mill Bastard File.

Notch Taper or Knife File.

Ornaments, wood Files, including Cabinet File, Cabinet
Making Rasp. Round Bastard Mill Bastard.
and Slim Taper File.

Pattern making, Files, including Cabinet File, Cabinet
Wood Rasp, Pattern Makers Rasp, Woodchuck,
Round Bastard, Square Bastard, Mill
Bastard and Slim Taper File.

Pipe fitting Half-Round Bastard File.

Planer knife Mill Bastard File.
carbon steel

Plastics Flat Bastard File. Also Mill Bastard File, Plastics File,
Laminate File, sharpened for plastics.

Plumbers' work Half-Round Bastard.

Rotary mower Home and Garden File, Handy File,
Blade Flat Bastard.

Rough filing Bastard File depending on shape to be filed.

Slot Knife File, Slim Taper or Warding.

Snagging Flat Bastard File.

Soft metal Flat Bastard.

Stainless Steel Flat, or Mill File sharpened for stainless

Steel alloy Use file applicable to the shape of the material.
File steel alloy only when it is annealed.

Switch contacts Contact Point File or Mill Bastard File, according to
surface area of switch contacts.

Switch, electric Mill Bastard File or Contact Point File, according to
size of switch.

Template Files, including Flat Bastard File, Half-Round Bastard
File, Mill Bastard File, or Round Bastard File.

V-groove Files, including Knife, Taper, Slim Taper,
X Slim Taper, XX Slim Taper.

Wood working Cabinet File or Cabinet Rasp.

Zinc Babbit File.

SAWS

Band Saw Band Saw Taper Single-Cut File

Cant Saw Cantsaw or Mill Bastard File.

Chain Saw Round, Special Square, Lozenge File* (Special Mill File
for Depth Gauge)

Circular Saw Mill Bastard, Cantsaw and Slim Taper Files

Cross-Cut Saw Special Crosscut, Mill, Round, or Round Edge Mill File.

Hand Saw Slim Taper, Extra Slim Taper, or Double Extra Slim Taper
File, according to points of saw. File recommended for saw
points per inch. Saw points shown in Bold.
5 - 7" Regular Taper
5 1/2 - 7" Regular Taper
6 - 7" or 8" Slim Taper
7 - 7" or 8" Slim Taper
8 - 6" Slim Taper, 7" Extra Slim Taper
or 8" Double Extra Slim Taper
9 - 6" Extra Slim Taper or 7" Double Extra Slim Taper
10 - 5" or 6" Extra Slim Taper

Wood or Mill Bastard and Slim Taper Files
Buck Saw

Steel Flat Bastard File.

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Profile Selector for Machinist’s Files

Cross Section Name Shape

Flat Rectangular

Hand Rectangular

Pillar Almost square

Warding Thin

Square Square

Three Square Triangular

Round Circular

Half Round Third-Circular

Knife Knife-Shaped

Profile Selector for Special Purpose Files

Aluminum Flat Rectangular

Character of Teeth Taper General Uses

Usually bastard. Also Taper in width A general purpose
second-cut and smooth file

One-edge safe. Bastard Uniform in Finishing flat
second-cut and smooth width surfaces

One-edge safe. Bastard Uniform in Keyways, slots
second-cut and smooth width narrow work

Usually bastard. Also Width sharply Filing ward notches
second-cut and smooth tapered in keys. Narrow
thickness work
uniform

Bastard, second-cut and Tapered Enlarging holes or
Smooth recesses Mortises,
keyways and splines

Sharp edges. Bastard Tapered Filing acute angles,
second-cut and smooth corners, grooves,
notches

Usually bastard. Also Either tapered Enlarging holes;
second-cut and smooth ("Rat Tail")* shaping curved
or blunt surfaces

Usually bastard. Also Uniform in Concave corners
second-cut and smooth width crevices, round
holes

Usually bastard. Also Tapered Cleaning out acute
second-cut and smooth curving to a angles, corners,
narrow point slots

Made in one cut only. Tapered Filing aluminum
Fast-cutting teeth alloys and other soft
metals

Aluminum Half-Round

Long Angle Flat Rectangular

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Made in one cut only. Slightly Filing aluminum
Fast-cutting teeth tapered alloys and other soft
metals

Made in one cut only. Slightly Lathe work where
Both edges safe tapered smooth finish is
desired. Also soft
metals

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Profile Selector for Swiss Pattern Files

Cross Section Name Shape

Hand Rectangular

Pillar Width narrower
than Hand File

Warding Thin Rectangular

Square Square

Three-Square Triangular
(Equilateral)

Round Circular

Half-Round Third Circular

Knife Knife-Shaped

Cant Triangular

Character of Teeth Taper General Uses

Double-cut on two flat Uniform in Flat surfaces
faces and one edge. width
Other edge safe or uncut

Double-cut on two flat Uniform in Flat surfaces
faces. Both edges safe width

Double-cut on two flat Tapered in Slots, locks and
faces. Single-cut on two width uniform keys
edges in thickness

Double-cut Tapered Corners, holes

Double-cut on three Tapered Corners, holes
Faces. Single-cut on
edges

Double-cut Either tapered Corners, holes
or uniform
(straight)

Double-cut Tapered Corners, holes

Double-cut on flat faces. Tapered Slots
Single-cut on edges

Double-cut on three Tapered Corners
faces. Single-cut on two
sharp edges

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